Oops, it doesn't look like 'bf daddy day' is a national day..

Other days

mean girls

Mean Girls Day
gum

Gum Day
eat what you want

Eat What You Want Day
nae nae

Nae Nae Day
carpenters

Carpenters Day
my little pony

My Little Pony Day
lisp

Lisp Day
nail polish

Nail Polish Day
offer

Offer Day
bounce

Bounce Day